package cn.itcast.myapplication;

import android.annotation.SuppressLint;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.os.Build;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.widget.Toast;

import androidx.activity.EdgeToEdge;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import androidx.core.graphics.Insets;
import androidx.core.view.ViewCompat;
import androidx.core.view.WindowInsetsCompat;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

import java.lang.reflect.Array;
import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity {
    private RecyclerView rv_contact;
    private ContactAdapter adapter;
    private Cursor cursor;
    private Cursor Cursorc;

    private void setData(){
        List<ContactInfo> contactInfos=getContacts();
        adapter=new ContactAdapter(MainActivity.this,contactInfos);
        rv_contact.setAdapter(adapter);
    }
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        EdgeToEdge.enable(this);
        setContentView(R.layout.activity_main);
        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main), (v, insets) -> {
            Insets systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars());
            v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom);
            return insets;
        });
        init();
    }
    @SuppressLint("Range")
    public List<ContactInfo> getContacts(){
        List<ContactInfo> contactInfos=new ArrayList<>();
        Cursor cursr=getContentResolver().query(ContactsContract.Contacts.CONTENT_URI,null,null,null,null);
        if(contactInfos !=null)contactInfos.clear();    //清除集合中的数据
        while (cursor.moveToNext()){
            String id=cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts._ID));
            String name=cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
            int isHas=Integer.parseInt(cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER)));
            if (isHas>0){
                 Cursorc = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, ContactsContract.CommonDataKinds.Phone.CONTACT_ID + "=" + id, null, null);
                Cursor c = null;
                while (c.moveToNext())
                {
                    ContactInfo info=new ContactInfo();
                    info.setContactName(name);
                    String number=c.getString(cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER)).trim();
                    number=number.replace(" ","").replace("-","").replace("(","").replace(")","");
                    info.setPhoneNumber(number);
                    contactInfos.add(info);
                }
                c.close();
            }
        }
        cursor.close();
        return contactInfos;
    }

    private void init(){
        rv_contact=findViewById(R.id.rv_contact);
        rv_contact.setLayoutManager(new LinearLayoutManager(this));
        getPermissions();
    }

    String[] permissionList;
    @SuppressLint("ObsoleteSdkInt")
    public void getPermissions()
    {
        if(Build.VERSION.SDK_INT>= Build.VERSION_CODES.M)
        {
            //需要的权限列表
            permissionList = new String[]{"android.permission.READ_CONTACTS"};
            //未授权的列表
            ArrayList<String> list = new ArrayList<>();
            //循环判断需要的权限列表中未授权的权限，然后添加到未授权列表中
            for(int i =0;i<permissionList.length;i++){
                if(ActivityCompat.checkSelfPermission(this,permissionList[i])!= PackageManager.PERMISSION_GRANTED)
                {
                    list.add(permissionList[i]);
                }
            }
            if(list.size()>0)
            {
//                list 跟数组 什么差别
                ActivityCompat.requestPermissions(this,list.toArray(new String[list.size()]),1);
            }
            else
            {
                Toast.makeText(this, "所有权限已授权", Toast.LENGTH_SHORT).show();
            }
        }
    }
    public void onRequestPermissionsResult(int requestCode, String[] permissions,int[] grantResults){
        super.onRequestPermissionsResult(requestCode,permissions,grantResults);
        if (requestCode==1)
        {
            for(int i = 0;i<permissions.length;i++)
            {
                if(permissions[i].equals("android.permission.READ_CONTACTS") && grantResults[i]==PackageManager.PERMISSION_GRANTED){
                    Toast.makeText(this, "读取通讯录权限申请成功", Toast.LENGTH_SHORT).show();
                    setData();
                }else {
                    Toast.makeText(this, "读取通讯录权限申请失败", Toast.LENGTH_SHORT).show();
                }
            }
        }
    }


}